Officials have reiterated a warning for the Hawaiian Islands as they are likely to be hit by the tsunami, where evacuation sirens are due to go off at 6 a.m. local time [16:00 GMT].

The tsunami wave (or waves) is expected to have a height of approximately 16 feet and each wave will last from five to fifteen minutes.

Indonesia and the Philippines have also been placed under a tsunami advisory, with the Philippine meteorological agency saying the tsunami may strike the eastern part of the archipelago in about 10 hours.

According to the latest reports, the death toll from the quake has leapt to 78.

Several aftershocks, including one that measured 6.9 on the Richter scale, followed the initial quake.

The Santiago Airport has been shut down for at least 24 hours as the result of the earthquake. Many parts of Santiago and Concepcion are without power.

Some 50 nations have been placed under a tsunami advisory. Areas of concern are the Hawaiian Islands, French Polynesia, Australia, and Japan. Russia's Far Eastern region was also advised, but local emergency authorities have stated that the region is in no danger.

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